Update on the epidemiology of inflammatory bowel disease in Asia: where are we now?

Inflammatory bowel disease (IBD) has become a global disease. As IBD is a chronic disease that can result in remarkable morbidity and disability, estimation and understanding the disease burden of IBD is imperative to prepare adequate health care systems. However, variations in IBD incidence or prevalence may reflect differences in the distribution, and there are regional disparities in Asia with a large population of approximately 4.6 billion in 2020, which is equivalent to 60% of the total world population. Although comprehensive understanding of the epidemiology of IBD in Asian countries is difficult, this review includes updated data regarding the incidence and prevalence of IBD and the estimated disease burden in Asia.